A:
Positive:
1 x 2474751723 x 107597931 x 79830761 x 405697569 x 43493713 x 347091403 x 176391891 x 13087
Negative:
-1 x -24747517-23 x -1075979-31 x -798307-61 x -405697-569 x -43493-713 x -34709-1403 x -17639-1891 x -13087
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 24,747,517, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 24,747,517 | |
| -1 | -24,747,517 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,747,517.
Example:
1 x 24,747,517 = 24,747,517
and
-1 x -24,747,517 = 24,747,517
Notice both answers equal 24,747,517
With that explanation out of the way, let's continue. Next, we take the number 24,747,517 and divide it by 2:
24,747,517 ÷ 2 = 12,373,758.5
If the quotient is a whole number, then 2 and 12,373,758.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 24,747,517 | |
| -1 | -24,747,517 |
Now, we try dividing 24,747,517 by 3:
24,747,517 ÷ 3 = 8,249,172.3333
If the quotient is a whole number, then 3 and 8,249,172.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 24,747,517 | |
| -1 | -24,747,517 |
Let's try dividing by 4:
24,747,517 ÷ 4 = 6,186,879.25
If the quotient is a whole number, then 4 and 6,186,879.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 24,747,517 | |
| -1 | 24,747,517 |
If you did it right, you will end up with this table:
| 1 | 23 | 31 | 61 | 569 | 713 | 1,403 | 1,891 | 13,087 | 17,639 | 34,709 | 43,493 | 405,697 | 798,307 | 1,075,979 | 24,747,517 |
| -1 | -23 | -31 | -61 | -569 | -713 | -1,403 | -1,891 | -13,087 | -17,639 | -34,709 | -43,493 | -405,697 | -798,307 | -1,075,979 | -24,747,517 |
Here are some more numbers to try:
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